/**
 * Copyright &copy; 2012-2016 <a href="https://github.com/thinkgem/jeesite">JeeSite</a> All rights reserved.
 */
package com.thinkgem.jeesite.common.utils;

import org.apache.commons.lang3.time.DateFormatUtils;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;

/**
 * 日期工具类, 继承org.apache.commons.lang.time.DateUtils类
 * @author ThinkGem
 * @version 2014-4-15
 */
public class DateUtils extends org.apache.commons.lang3.time.DateUtils {

	private static String[] parsePatterns = {
		"yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM",
		"yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
		"yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};

	/**
	 * 得到当前日期字符串 格式（yyyy-MM-dd）
	 */
	public static String getDate() {
		return getDate("yyyy-MM-dd");
	}

	/**
	 * 得到当前日期字符串 格式（yyyy-MM-dd） pattern可以为："yyyy-MM-dd" "HH:mm:ss" "E"
	 */
	public static String getDate(String pattern) {
		return DateFormatUtils.format(new Date(), pattern);
	}

	/**
	 * 得到日期字符串 默认格式（yyyy-MM-dd） pattern可以为："yyyy-MM-dd" "HH:mm:ss" "E"
	 */
	public static String formatDate(Date date, Object... pattern) {
		String formatDate = null;
		if (pattern != null && pattern.length > 0) {
			formatDate = DateFormatUtils.format(date, pattern[0].toString());
		} else {
			formatDate = DateFormatUtils.format(date, "yyyy-MM-dd");
		}
		return formatDate;
	}

	/**
	 * 得到日期时间字符串，转换格式（yyyy-MM-dd HH:mm:ss）
	 */
	public static String formatDateTime(Date date) {
		return formatDate(date, "yyyy-MM-dd HH:mm:ss");
	}

	/**
	 * 得到当前时间字符串 格式（HH:mm:ss）
	 */
	public static String getTime() {
		return formatDate(new Date(), "HH:mm:ss");
	}

	/**
	 * 得到当前日期和时间字符串 格式（yyyy-MM-dd HH:mm:ss）
	 */
	public static String getDateTime() {
		return formatDate(new Date(), "yyyy-MM-dd HH:mm:ss");
	}

	/**
	 * 得到当前年份字符串 格式（yyyy）
	 */
	public static String getYear() {
		return formatDate(new Date(), "yyyy");
	}

	/**
	 * 得到当前月份字符串 格式（MM）
	 */
	public static String getMonth() {
		return formatDate(new Date(), "MM");
	}

	/**
	 * 得到当天字符串 格式（dd）
	 */
	public static String getDay() {
		return formatDate(new Date(), "dd");
	}

	/**
	 * 得到当前星期字符串 格式（E）星期几
	 */
	public static String getWeek() {
		return formatDate(new Date(), "E");
	}

	/**
	 * 日期型字符串转化为日期 格式
	 * { "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm",
	 *   "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm",
	 *   "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm" }
	 */
	public static Date parseDate(Object str) {
		if (str == null){
			return null;
		}
		try {
			return parseDate(str.toString(), parsePatterns);
		} catch (ParseException e) {
			return null;
		}
	}

	/**
	 * 获取过去的天数
	 * @param date
	 * @return
	 */
	public static long pastDays(Date date) {
		long t = new Date().getTime()-date.getTime();
		return t/(24*60*60*1000);
	}

	/**
	 * 获取过去的小时
	 * @param date
	 * @return
	 */
	public static long pastHour(Date date) {
		long t = new Date().getTime()-date.getTime();
		return t/(60*60*1000);
	}

	/**
	 * 获取过去的分钟
	 * @param date
	 * @return
	 */
	public static long pastMinutes(Date date) {
		long t = new Date().getTime()-date.getTime();
		return t/(60*1000);
	}

	/**
	 * 转换为时间（天,时:分:秒.毫秒）
	 * @param timeMillis
	 * @return
	 */
    public static String formatDateTime(long timeMillis){
		long day = timeMillis/(24*60*60*1000);
		long hour = (timeMillis/(60*60*1000)-day*24);
		long min = ((timeMillis/(60*1000))-day*24*60-hour*60);
		long s = (timeMillis/1000-day*24*60*60-hour*60*60-min*60);
		long sss = (timeMillis-day*24*60*60*1000-hour*60*60*1000-min*60*1000-s*1000);
		return (day>0?day+",":"")+hour+":"+min+":"+s+"."+sss;
    }

	/**
	 * 获取两个日期之间的天数
	 *
	 * @param before
	 * @param after
	 * @return
	 */
	public static double getDistanceOfTwoDate(Date before, Date after) {
		long beforeTime = before.getTime();
		long afterTime = after.getTime();
		return (afterTime - beforeTime) / (1000 * 60 * 60 * 24)+1;
	}

	/**
	 * 获取两个日期之间的工作天数
	 */


	public static int getDutyDays(String strStartDate,String strEndDate) {
		SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		Date startDate=null;
		Date endDate = null;

		try {
			startDate=df.parse(strStartDate);
			endDate = df.parse(strEndDate);
		} catch (ParseException e) {
			System.out.println("非法的日期格式,无法进行转换");
			e.printStackTrace();
		}
		int result = 0;
		while (startDate.compareTo(endDate) <= 0) {
			if (startDate.getDay() != 6 && startDate.getDay() != 0)
				result++;
			System.out.println(result);
			startDate.setDate(startDate.getDate() + 1);
		}

		return result;
	}

	/**
	*生成日历
	**/
    public static List<DayEntity> getRiLi(String strStartDate,String strEndDate)  {
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
        Date startDate=null;
        Date endDate = null;


        try {
            startDate=df.parse("2016-01-01");
            endDate = df.parse("2017-12-31");
        } catch (ParseException e) {
            System.out.println("非法的日期格式,无法进行转换");
            e.printStackTrace();
        }
        System.out.println("日\t一\t二\t三\t四\t五\t六");
        List<DayEntity> dayEntityList = new ArrayList<DayEntity>();
        DayEntity dayEntity = new DayEntity();
        while (startDate.compareTo(endDate) <= 0) {
            Calendar cal = Calendar.getInstance();
            cal.setTime(startDate);
            int month=startDate.getMonth()+1;
            int day = startDate.getDay();
            if (day == 0) {
                dayEntity.setDay0(cal.getWeekYear() + "-" + month+ "-" + startDate.getDate() + "");
            }

            if (day == 1) {
                dayEntity.setDay1(cal.getWeekYear() + "-" + month + "-" + startDate.getDate() + "");

            }
            if (day == 2) {
                dayEntity.setDay2(cal.getWeekYear() + "-" + month + "-" + startDate.getDate() + "");
            }
            if (day == 3) {
                dayEntity.setDay3(cal.getWeekYear() + "-" + month + "-" + startDate.getDate() + "");
            }
            if (day == 4) {
                dayEntity.setDay4(cal.getWeekYear() + "-" + month + "-" + startDate.getDate() + "");
            }
            if (day == 5) {
                dayEntity.setDay5(cal.getWeekYear() + "-" + month + "-" + startDate.getDate() + "");
            }
            if (day == 6) {
                dayEntity.setDay6(cal.getWeekYear() + "-" + month + "-" + startDate.getDate() + "");


            }
            System.out.print(startDate.getDate()+"\t");
            if(day==6){

                System.out.println();
                dayEntityList.add(dayEntity);
                dayEntity = new DayEntity();
            }

            int monthLastDay = DateUtils.getMonthLastDay(cal.getWeekYear(), month);
            if(monthLastDay==startDate.getDate()){
                System.out.println();
                dayEntityList.add(dayEntity);
                dayEntity = new DayEntity();
            }

            startDate.setDate(startDate.getDate() + 1);
        }

        return  dayEntityList;

    }


    public static List<MonthEntity> getMonthList(String strStartDate,String strEndDate)  {
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
        Date startDate=null;
        Date endDate = null;

        List<MonthEntity> monthEntityList=new ArrayList<MonthEntity>();
        try {
            startDate=df.parse("2016-12-01");
            endDate = df.parse("2017-02-28");
        } catch (ParseException e) {
            System.out.println("非法的日期格式,无法进行转换");
            e.printStackTrace();
        }
        System.out.println("日\t一\t二\t三\t四\t五\t六");
        List<DayEntity> dayEntityList = new ArrayList<DayEntity>();
        DayEntity dayEntity = new DayEntity();
        while (startDate.compareTo(endDate) <= 0) {
            Calendar cal = Calendar.getInstance();
            cal.setTime(startDate);
            int month=startDate.getMonth()+1;
            int day = startDate.getDay();
            if (day == 0) {
                dayEntity.setDay0(cal.getWeekYear() + "-" + month+ "-" + startDate.getDate() + "");
            }

            if (day == 1) {
                dayEntity.setDay1(cal.getWeekYear() + "-" + month + "-" + startDate.getDate() + "");

            }
            if (day == 2) {
                dayEntity.setDay2(cal.getWeekYear() + "-" + month + "-" + startDate.getDate() + "");
            }
            if (day == 3) {
                dayEntity.setDay3(cal.getWeekYear() + "-" + month + "-" + startDate.getDate() + "");
            }
            if (day == 4) {
                dayEntity.setDay4(cal.getWeekYear() + "-" + month + "-" + startDate.getDate() + "");
            }
            if (day == 5) {
                dayEntity.setDay5(cal.getWeekYear() + "-" + month + "-" + startDate.getDate() + "");
            }
            if (day == 6) {
                dayEntity.setDay6(cal.getWeekYear() + "-" + month + "-" + startDate.getDate() + "");


            }
            System.out.print(startDate.getDate()+"\t");
            if(day==6){
                System.out.println();
                dayEntityList.add(dayEntity);
                dayEntity = new DayEntity();
            }

            int monthLastDay = DateUtils.getMonthLastDay(cal.getWeekYear(), month);
            if(monthLastDay==startDate.getDate()){
                System.out.println();
                dayEntityList.add(dayEntity);
                monthEntityList.add(new MonthEntity(month+"",dayEntityList));
                dayEntity = new DayEntity();
            }

            startDate.setDate(startDate.getDate() + 1);
        }

        return  monthEntityList;

    }
    /**
     * 得到指定月的天数
     * */
    public static int getMonthLastDay(int year, int month)
    {
        Calendar a = Calendar.getInstance();
        a.set(Calendar.YEAR, year);
        a.set(Calendar.MONTH, month - 1);
        a.set(Calendar.DATE, 1);//把日期设置为当月第一天
        a.roll(Calendar.DATE, -1);//日期回滚一天，也就是最后一天
        int maxDate = a.get(Calendar.DATE);
        return maxDate;
    }
}
